EP2188069A1 - Method and system for treating different waste streams - Google Patents
Method and system for treating different waste streamsInfo
- Publication number
- EP2188069A1 EP2188069A1 EP07808576A EP07808576A EP2188069A1 EP 2188069 A1 EP2188069 A1 EP 2188069A1 EP 07808576 A EP07808576 A EP 07808576A EP 07808576 A EP07808576 A EP 07808576A EP 2188069 A1 EP2188069 A1 EP 2188069A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- waste
- waste stream
- purification
- stream
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 135
- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000000746 purification Methods 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 25
- 239000012611 container material Substances 0.000 claims abstract description 21
- 210000003608 fece Anatomy 0.000 claims abstract description 13
- 238000000855 fermentation Methods 0.000 claims abstract description 11
- 230000004151 fermentation Effects 0.000 claims abstract description 11
- 210000002700 urine Anatomy 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000000126 substance Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 11
- 231100000614 poison Toxicity 0.000 claims description 10
- 239000003440 toxic substance Substances 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 5
- 239000000470 constituent Substances 0.000 claims description 3
- 238000005374 membrane filtration Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000010806 kitchen waste Substances 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 7
- 238000001914 filtration Methods 0.000 description 4
- 239000002352 surface water Substances 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000011344 liquid material Substances 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 239000010813 municipal solid waste Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- 238000009264 composting Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000010921 garden waste Substances 0.000 description 2
- 230000003054 hormonal effect Effects 0.000 description 2
- 239000002906 medical waste Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 239000011343 solid material Substances 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 229920000704 biodegradable plastic Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 231100000196 chemotoxic Toxicity 0.000 description 1
- 230000002604 chemotoxic effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001728 nano-filtration Methods 0.000 description 1
- 230000000474 nursing effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/0075—Disposal of medical waste
Definitions
- the present invention relates to a method for treating a number of different waste streams in a care institution, such as a hospital, home for the elderly, nursing home and the like.
- the invention also relates to a system for treating a number of different waste streams in a care institution.
- Such waste streams may comprise many different kinds of materials.
- the most elementary are urine and feces which are collected in chamber pots and urinals. It is customary to deposit the urine and feces in a toilet bowl and dispose of them via the public sewage system, following which these will be discharged to the surface water, optionally after purification treatment in a purification installation for public sewage water (RWZI).
- RWZI public sewage water
- a second drawback is the fact that any medicinal and/or toxic substances contained in the urine and/or feces may end up in the surface water.
- a further waste stream is formed by kitchen waste.
- This kitchen waste is generally not contaminated, that is to say does not contain medicinal and/or toxic substances which are harmful to the environment, and can be taken to a dump in garbage bags or to an industrial composting plant in containers for vegetable, fruit and garden waste. Collecting kitchen waste, putting it into garbage bags or into containers for vegetable, fruit and garden waste and transporting the garbage bags to a dump or industrial composting plant using trucks is expensive and labor-intensive.
- a further waste stream consists of waste water which originates from departments in the care institution which use water, for example bath and/or shower water or water used in a kitchen, which is normally discharged via the sewage system.
- bath and/or shower water is often polluted with medicinal and/or toxic substances, which, for example, originate from patients 1 perspiration moisture.
- the sewage water which is contaminated in this way can then pass into the environment without having been purified or at least not sufficiently purified.
- a further waste stream is formed by waste which is caused by the treatment of patients, such as drugs, bandages, etcetera.
- waste is potentially contaminated, that is to say that the waste contains a relatively high concentration of medicinal, bacterially and virally infectious material and/or toxic substances, and discharging such waste untreated has grave consequences.
- RWZI sewage water purification installation
- additional measures have to be taken in order to remove this waste. This would mean that the entire volume of waste, also the less polluting components thereof have to be treated, which results in high costs. Therefore, in practice, this waste is not discharged via the sewer system, but is discharged strictly separate from the other waste.
- specific hospital waste also referred to by Eural code 18 of the European list of waste substances, has to be presented in special containers and disposed of in special incinerators suitable for incinerating hospital waste.
- waste streams are discharged via the usual sewage system and other waste streams are collected separately and discharged via separate procedures. It is an object of the present invention to make the treatment of waste streams more efficient, as a result of which the costs for care institutions can be reduced without compromising hygiene.
- At least one of these objects is achieved by the method for treating a number of S different waste streams by means of a local purification system of a care institution, wherein the waste streams comprise at least one first waste stream which comprises substantially feces and urine and a second waste stream which comprises substantially waste placed in a container and comprising medicinal and/or toxic substances, the method comprising: 0 - discharging the first waste stream and the second waste stream via pipes of a pipe system, the waste streams being fed to respective pipes of the pipe system at different locations, passing the waste streams through one or more comminuting devices for comminuting the waste and the containers, 5 - separating the actual waste and the container material from the waste stream which is obtained in this manner, feeding the actual waste to a purification installation and purifying the liquid constituents present therein.
- the purification system is local which means that it is provided in or near the care institution, and may, in addition, be readily connected to the public sewage system or to the surface water. The latter is possible by virtue of the extremely low degree of pollution of the discharge stream produced by certain embodiments of the purification system according to the invention.
- the inventors have come to the surprising finding that it is readily possible to jointly treat and purify two or more waste streams which should normally be kept strictly separate in care institutions. Once the inventors had arrived at this finding, it became clear that the joint treatment of the waste streams has a large number of advantages.
- the first and second waste streams are passed through at least one purification device which is the same for both waste streams and, in some embodiments, waste streams can also be passed through the same comminuting devices, the costs for purifying the waste streams can be dramatically reduced.
- the different waste streams can be introduced into the pipe system separately in order to be mixed with one another in it in a further step. It is, for example, possible to carry out mixing directly at the inlet into the system, so that the comminuting treatment is carried out on the mixture of waste streams.
- the waste streams are first comminuted separately, for example by passing the waste streams one after the other through the same comminuting device or by passing each of the waste streams through a separate comminuting device, in order only then to be mixed with one another. The subsequent separating stage is then carried out on the mixture of the different waste streams.
- the container and the actual waste are no longer separated. That is to say, feces and/or urine are discharged together with the container (such as a chamber pot), which means that the costly handling of containers is made completely redundant.
- the containers are made to be disposable. According to the present invention, it is possible to feed waste to a pipe system at different locations, for example in each department. As a first step, the first and second waste stream are comminuted directly at the inlet, so that the waste can be introduced into a pipe system without any risks so that there is no fear of blockage.
- the waste from different inlets is subjected to a separating treatment, preferably at a central location.
- a separating treatment preferably at a central location.
- the actual waste stream comprising urine, feces, drugs and the like is fed to a purification installation and, after having been processed, purified water is obtained which may, if desired, be re-used, but can at least be discharged to the sewer system without causing environmental damage.
- the purification installation may comprise a bio-membrane reactor, that is to say a reactor in which the liquid which is released is subjected to membrane filtration in order to guarantee purity. Any sludge which may have accumulated can be discharged periodically.
- the amount of sludge is very small and does not cause substantial costs.
- Other purification techniques may also be used in addition to or instead of purification by means of a bio-membrane reactor, which may, for example be based on filtration. It is also possible to use a succession of several filter systems.
- the container material used substantially consists of plastic material
- the latter is cleaned following the comminuting and separating treatment and can be discharged in order to be re-used.
- the flushing water which results from this process may be fed to the purification installation.
- the container material contains biodegradable substances, such as substances based on PLA
- purification is preferably likewise carried out after separation from the actual waste.
- flushing water can be fed to the bioreactor.
- the resulting relatively clean PLA can be subjected to a fermentation treatment in a fermenter. It is also possible to feed in waste streams from, for example, the kitchen of a hospital or the like. Such waste streams will likewise preferably be comminuted beforehand.
- both solid/liquid material and gas are released.
- This gas can be used for heating purposes, for example for heating the fermenter and/or for generating power.
- the solid/liquid material is preferably separated into hard components and non- hard components.
- the hard components can be composted, while the non-hard components can be fed to the inlet of the purification installation.
- bio-membrane filtration in particular ultrafiltration, nanofiltration, osmosis and/or hyperfiltration takes place in the purification installation, followed by additional filtration techniques, such as oxidation, UV-f ⁇ ltration, active carbon filtration and the like.
- additional filtration is to remove substances, such as for example heavy metals and/or toxic substances, which have not been filtered out by the membrane filters.
- the invention also relates to a purification system of a care institution for treating a number of different waste streams, wherein the waste streams comprise at least one first waste stream which substantially comprises feces and urine and a second waste stream which comprises waste substantially placed in a container and comprising medicinal and/or toxic substances,
- the purification system comprising a pipe system with a number of inlets which can be arranged at different locations in the care institution and which are connected to the outlets for at least the first and second discharge stream, one or more comminuting devices connected to each of the inlets via pipes for comminuting the waste together with the containers from the discharge flows, wherein the outlets of the comminuting devices are connected to a separating device for separating actual waste materials and container materials from the waste stream, a purification installation being connected to the outlet of the separating device for the actual waste material.
- fig. 1 diagrammatically shows a first variant of the invention for use with nonbiodegradable containers
- fig. 2 shows a variant of the invention for use with biodegradable containers.
- reference numeral 1 denotes a first variant of the system according to the present invention.
- Such a system is preferably used in a care institution or another establishment where intensive care of people takes place used, such as a hospital, home for the elderly and the like.
- Waste is produced during caring, such as feces and the like, and this is discharged together with the container thereof via inlets 2 located in the various departments.
- a pipe system is connected to the inlets through which the waste can be transported.
- the term "pipe” is in this context understood to mean any form of tube, shaft, duct, conduit, etc.
- a comminuting device 3 is situated directly downstream of the inlets 2. After comminution, the waste can readily be passed through a pipe system.
- a central separating device 4 is provided into which the different inlets debouch. In this separating device, the actual waste (feces and the like) is separated from the containers, that is to say the container material. The actual waste is fed to a purification installation 5.
- the liquid material (water) which constitutes by far the largest part is discharged at 15 following a further separation and may be re-used, if desired. Incidentally, discharge to a sewer system does not cause any environmental damage so that no additional environmental levies will have to be paid.
- the stream of container material is passed to a purification device 6.
- the plastic material or other material is treated by means of a cleaning fluid, for example flushing water which may, for example, be the flushing water emanating from outlet 15.
- the flushing water is separated from the treated material and this flushing water is returned to the purification installation 5 via pipe 14.
- the treated container material is discharged via outlet 7 in order to be re-used.
- Fig. 2 shows a variant of the present invention.
- the system is denoted overall by reference numeral 31 and waste is supplied via inlets 32.
- the container portion of the waste comprises biodegradable types of material, such as paper-like types of material, biodegradable plastics, such as PLA plastics. These are comminuted in a comminuting device 33 in the manner described above and centrally fed to a separating device 34 where the actual waste stream is again separated from the container material. The actual waste stream is fed to the purification installation 35 and the water which is released in the process is discharged via outlet 45 in order to be re-used.
- the biodegradable material which is released in the separating device 34 is initially treated in the manner described above in purification device 36.
- the flushing water which is used and which may come from outlet 45 is again fed to the purification installation 35 in this case as well.
- the treated container material is fed to a fermenter 38 by means of a pipe 37. It is also possible to feed kitchen waste to this fermenter 38 by means of inlet 39 and a further comminuting device 40.
- Fermentation in the fermenter 38 produces heat/gas, which heat/gas can be used for heating the fermenter 38 and/or for generating power in order to promote the degradation process and the conditions for the micro-organisms in the fermenter.
- the solid/liquid waste stream is fed to a separator 41 where the hard components are filtered out and discharged in order to be composted 42. If desired, a heating step is also carried out in order to render any bacteria in the hard components harmless by heating.
- the softer components including the liquid are fed to the purification installation via pipe 43.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/NL2007/050445 WO2009035317A1 (en) | 2007-09-10 | 2007-09-10 | Method and system for treating different waste streams |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2188069A1 true EP2188069A1 (en) | 2010-05-26 |
EP2188069B1 EP2188069B1 (en) | 2011-06-22 |
Family
ID=39247312
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07808576A Active EP2188069B1 (en) | 2007-09-10 | 2007-09-10 | Method and system for treating different waste streams |
Country Status (14)
Country | Link |
---|---|
US (1) | US8394274B2 (en) |
EP (1) | EP2188069B1 (en) |
JP (1) | JP5181024B2 (en) |
KR (1) | KR101540414B1 (en) |
CN (1) | CN101883644B (en) |
AT (1) | ATE513632T1 (en) |
AU (1) | AU2007358797B2 (en) |
BR (1) | BRPI0722008B1 (en) |
CA (1) | CA2699050C (en) |
DK (1) | DK2188069T3 (en) |
ES (1) | ES2364860T3 (en) |
IL (1) | IL204388A (en) |
WO (1) | WO2009035317A1 (en) |
ZA (1) | ZA201001861B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3015750A2 (en) | 2014-10-31 | 2016-05-04 | Pharmafilter B.V. | Device, method and system for shredding and disposing of waste |
NL2016583A (en) * | 2015-07-21 | 2017-01-26 | Pharmafilter B V | Rioleringsput. |
WO2017014636A1 (en) * | 2015-07-21 | 2017-01-26 | Pharmafilter B.V. | Sewage pit |
WO2020204711A1 (en) * | 2019-04-01 | 2020-10-08 | Pharmafilter B.V. | Separator and method of separating |
Families Citing this family (13)
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JP5564309B2 (en) * | 2010-03-31 | 2014-07-30 | 日立造船株式会社 | Method for preparing waste-derived biomass material |
JP2013034995A (en) * | 2012-10-11 | 2013-02-21 | Pharmafilter Bv | Treatment method and treatment system for different waste stream |
NL2009750C2 (en) * | 2012-11-02 | 2014-05-08 | We Consult Holding B V | METHOD FOR PURIFYING WATER AND AN APPARATUS APPROPRIATE. |
WO2014079469A1 (en) | 2012-11-22 | 2014-05-30 | Meiko Maschinenbau Gmbh & Co.Kg | Method and device for processing waste water and organic wastes |
CN103306337B (en) * | 2013-06-07 | 2014-12-17 | 江苏高博智融科技有限公司 | Intelligent kitchen sink with amplifying circuit |
CN103321280B (en) * | 2013-06-07 | 2014-08-20 | 无锡天惠塑机有限公司 | Intelligent kitchen sink with filter circuit |
CN103306336B (en) * | 2013-06-07 | 2015-02-04 | 无锡天惠塑机有限公司 | Intelligent kitchen pond |
CN103336462A (en) * | 2013-06-07 | 2013-10-02 | 无锡天惠塑机有限公司 | Intelligent kitchen sink with photoelectric coupling and amplification circuit |
NL2011600C2 (en) | 2013-10-11 | 2015-04-14 | Pharmafilter B V | METHOD AND DEVICE FOR CRUSHING WASTE. |
CN108331071A (en) * | 2018-02-24 | 2018-07-27 | 李君辉 | A kind of synthesis reuse method of combination integrated form domestic waste water |
US20210078507A1 (en) * | 2018-05-01 | 2021-03-18 | Thetford Bv | Wastewater management system for vehicles and related methods |
CN113110358A (en) * | 2021-05-15 | 2021-07-13 | 周文波 | Wisdom building integrated management system based on waste water circulation handles |
US11879241B1 (en) | 2022-08-23 | 2024-01-23 | Park Environmental Equipment, Llc | Decontamination rinse wastewater management system for use with a shower facility |
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2007
- 2007-09-10 KR KR1020107007684A patent/KR101540414B1/en active IP Right Grant
- 2007-09-10 US US12/677,370 patent/US8394274B2/en active Active
- 2007-09-10 WO PCT/NL2007/050445 patent/WO2009035317A1/en active Application Filing
- 2007-09-10 JP JP2010523970A patent/JP5181024B2/en active Active
- 2007-09-10 CA CA2699050A patent/CA2699050C/en active Active
- 2007-09-10 BR BRPI0722008A patent/BRPI0722008B1/en active IP Right Grant
- 2007-09-10 AT AT07808576T patent/ATE513632T1/en active
- 2007-09-10 EP EP07808576A patent/EP2188069B1/en active Active
- 2007-09-10 CN CN2007801005693A patent/CN101883644B/en active Active
- 2007-09-10 ES ES07808576T patent/ES2364860T3/en active Active
- 2007-09-10 AU AU2007358797A patent/AU2007358797B2/en active Active
- 2007-09-10 DK DK07808576.8T patent/DK2188069T3/en active
-
2010
- 2010-03-09 IL IL204388A patent/IL204388A/en active IP Right Grant
- 2010-03-16 ZA ZA2010/01861A patent/ZA201001861B/en unknown
Non-Patent Citations (1)
Title |
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See references of WO2009035317A1 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3015750A2 (en) | 2014-10-31 | 2016-05-04 | Pharmafilter B.V. | Device, method and system for shredding and disposing of waste |
NL2016583A (en) * | 2015-07-21 | 2017-01-26 | Pharmafilter B V | Rioleringsput. |
WO2017014636A1 (en) * | 2015-07-21 | 2017-01-26 | Pharmafilter B.V. | Sewage pit |
IL257002A (en) * | 2015-07-21 | 2018-03-29 | Pharmafilter B V | Sewage pit |
US11078659B2 (en) | 2015-07-21 | 2021-08-03 | Pharmafilter B.V. | Sewage pit |
WO2020204711A1 (en) * | 2019-04-01 | 2020-10-08 | Pharmafilter B.V. | Separator and method of separating |
NL2022846B1 (en) | 2019-04-01 | 2020-10-08 | Pharmafilter B V | Separator and method of separating. |
US11958076B2 (en) | 2019-04-01 | 2024-04-16 | Stichting Ip & Know How Pharmafilter | Separator and method of separating |
Also Published As
Publication number | Publication date |
---|---|
US8394274B2 (en) | 2013-03-12 |
ZA201001861B (en) | 2011-05-25 |
WO2009035317A1 (en) | 2009-03-19 |
CN101883644B (en) | 2013-01-09 |
EP2188069B1 (en) | 2011-06-22 |
CA2699050A1 (en) | 2009-03-19 |
JP5181024B2 (en) | 2013-04-10 |
CA2699050C (en) | 2015-04-28 |
KR20100075901A (en) | 2010-07-05 |
KR101540414B1 (en) | 2015-07-29 |
AU2007358797B2 (en) | 2013-03-07 |
AU2007358797A1 (en) | 2009-03-19 |
ATE513632T1 (en) | 2011-07-15 |
BRPI0722008A2 (en) | 2014-03-18 |
CN101883644A (en) | 2010-11-10 |
DK2188069T3 (en) | 2011-10-03 |
ES2364860T3 (en) | 2011-09-15 |
US20100326905A1 (en) | 2010-12-30 |
BRPI0722008B1 (en) | 2018-05-08 |
IL204388A (en) | 2013-04-30 |
JP2010538809A (en) | 2010-12-16 |
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